About 1000 million years agodinosaurs romed the land but when the first dinosaurs camethey were tiny and never grew untill a dinosaur hadan idea if two dinosaurs stood at two ends and held on to another slowly walking backwards it would strech and get very tall. soon everydinosaur had become tall but sill not big so a parasourolophus said to eat more and get fatter and become bigger but if there are no more of us and the plants tuff. a few years later the parasourolophus wasright all of the dinosaurs and plant had gone.